/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/ControlRig.h
Setup the initial transform / ref pose of the bones based upon an anim instance proxy This uses the current refpose instead of the RefSkeleton pose.
virtual void SetBoneInitialTransformsFromAnimInstanceProxy ( const [FAnimInstanceProxy](API\Runtime\Engine\Animation\FAnimInstanceProxy) * InAnimInstanceProxy )